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saveliy_v [14]
3 years ago
15

Which part of the eye is the opening through which light initially passes? which part of the eye is the opening through which li

ght initially passes? fovea. sclera. retina. pupil?
Biology
1 answer:
Ket [755]3 years ago
8 0
Pupil! The pupil is the black hole that you see when you look into someone’s eye, the light passes through that hole first.
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There is a population where the frequencies of allele 1 and allele 2 are 0.7 and 0.3, respectively. Allele 1 has a selection coe
Lorico [155]

Answer:

0.8

Explanation:

There is a population where the frequencies of allele 1 and allele 2 are 0.7 and 0.3, respectively

Let's use GG to represent allele 1

Let's use gg to represent allele 2

So we can equally say that;

GG = p = 0.7

gg = q  = 0.3   ( from Hardy-Weinberg Equilibrium)

So, given that the selection coefficient = 0.2

We known that the cross between GG and gg will definitely results to (GG,Gg and gg)

Then the fitness of these genes can be represented as:

1 - s, 1 and 1 - t respectively.

Thus. the allele 1's genotype fitness can be determined as

= 1 - s    ( where s is the selection coefficient)

= 1 - 0.2

= 0.8

6 0
3 years ago
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A hiker crosses topography near the sea that has low elevation and low relief and then climbs up steeply to reach a
gladu [14]

Answer:

mountain and coastal plains

Explanation:

i think it would be coastal plains because the area with low elevation is near the sea. only one answer has coastal plains in it, so use process of elimination. additionally, mountain makes sense since theyre usually steep and end in a peak.

7 0
3 years ago
Which are two factors that affect water quality?
zalisa [80]

Answer:

Sedimentation.

Runoff.

Explanation:

8 0
3 years ago
If a gene is found only on the X chromosome and not the Y chromosome, it is said to be what?
umka21 [38]

Answer:

Sex-linked trait

Explanation:

When a gene is present on the X chromosome, but not on the Y chromosome, it is said to be X-linked. X-linked genes have different inheritance patterns than genes on non-sex chromosomes (autosomes). That's because these genes are present in different copy numbers in males and females.

6 0
3 years ago
What analogy is used to describe how cell replication is regulated?​
Alenkasestr [34]

Answer:

Again keeping with the similarity to the centromere, this metaphor also has been used to describe the building of the kinetochore on the centromere (56). DNA replication is regulated in the cell cycle in the following manner (Figure 1b): ORC recognizes and binds to the origin.

Explanation:

3 0
2 years ago
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